Phys.org June 27, 2018 One of the biggest issues causing bias in facial analysis is the lack of diverse data to train systems on. IBM is releasing a facial attribute and identity training dataset of over 1 million images to improve facial analysis. It is annotated with attributes and identity, leveraging geo-tags from Flickr images to balance data from multiple countries and active learning tools to reduce sample selection bias. Unlike the current datasets the IBM dataset has a single capability to match attributes (hair color, facial hair, etc.) and identify multiple images of the same person. A dataset which […]
Tag Archives: Pattern recognition
A nanotech sensor that turns molecular fingerprints into bar codes
Eurekalert June 7, 2018 The system developed by an international team of researchers (Switzerland, Australia) consists of an engineered surface covered with hundreds of tiny sensors (metapixels) each one resonating at a different frequency. Different vibrational frequencies are mapped to different areas on the surface which creates a pixelated map of light absorption that can be translated into a molecular bar code – all without using a spectrometer. They have used the system to detect polymers, pesticides and organic compounds. It is highly sensitive and generates bar codes even with broadband light sources and detectors. Applications include portable medical testing […]